| 41. | The Swiss Lever escapement has been the standard in horology for hundreds of years.
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| 42. | In this design the work is divided between two major wheels of the escapement.
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| 43. | Breguet apparently did not find the �chappement naturel fully satisfactory as a commercial escapement.
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| 44. | Some of the watches were returned for service to the escapement on numerous occasions.
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| 45. | Even with single channel radios, a sequence of escapements could sometimes be cascaded.
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| 46. | This was the first escapement to separate the locking and impulse actions of the escapement.
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| 47. | This was the first escapement to separate the locking and impulse actions of the escapement.
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| 48. | In this escapement, the pendulum is driven by two hinged arms ( pallets ).
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| 49. | The grasshopper escapement has been used in very few clocks since Harrison's time.
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| 50. | Also, they had a pinwheel escapement.
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